19119568

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{91921}}^1$

素因数の和:91942

約数の個数: 20

約数和(自身を含む): 39894148

約数和(自身を除く): 20774580

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 91921, 183842, 367684, 735368, 1194973, 1470736, 2389946, 4779892, 9559784, 19119568]

約数ペア:

[(1, 19119568), (2, 9559784), (4, 4779892), (8, 2389946), (13, 1470736), (16, 1194973), (26, 735368), (52, 367684), (104, 183842), (208, 91921)]